Vulnerability Monitor

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CVE-2016-9159

A vulnerability has been identified in SIMATIC S7-300 CPU family (All versions), SIMATIC S7-300 CPU family (incl. related ET200 CPUs and SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V6 and below CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 PN/DP V7 CPU family (incl. SIPLUS variants) (All versions), SIMATIC S7-400 V6 and earlier CPU family (All versions), SIMATIC S7-400 V7 CPU family (All versions), SIMATIC S7-410 V8 CPU family (All versions), SIMATIC S7-410 V8 CPU family (incl. SIPLUS variants) (All versions). An attacker with network access to port 102/tcp (ISO-TSAP) or via Profibus could obtain credentials from the PLC if protection-level 2 is configured on the affected devices.

Security Impact Summary

This vulnerability carries a MEDIUM severity rating with a CVSS v3.1 score of 5.9, indicating it can be exploited remotely over the network but requires specific conditions to be met without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts confidentiality (data exposure), for affected systems. Impacting 21 products from siemens, from siemens, from siemens and 18 others, organizations running these solutions should prioritize assessment and patching.

Historical Context

First disclosed in 2016, this vulnerability was reported during a period defined by widespread IoT adoption challenges, mobile security concerns, and the emergence of advanced persistent threat (APT) techniques. Contemporary mitigation strategies focused on secure development practices and third-party component vetting.

Published

2016-12-17T03:59:00.233

Last Modified

2025-04-12T10:46:40.837

Status

Deferred

Source

[email protected]

Severity

CVSSv3.0: 5.9 (MEDIUM)

CVSSv2 Vector

AV:N/AC:M/Au:N/C:P/I:N/A:N

Access Vector: NETWORK
Access Complexity: MEDIUM
Authentication: NONE
Confidentiality Impact: PARTIAL
Integrity Impact: NONE
Availability Impact: NONE

Exploitability Score

8.6

Impact Score

2.9

Weaknesses

Type: Secondary
CWE-200
Type: Primary
CWE-200

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Operating System	siemens	simatic_s7-300_cpu_firmware	-	Yes
Hardware	siemens	simatic_s7-300_cpu_312	-	No
Hardware	siemens	simatic_s7-300_cpu_314	-	No
Hardware	siemens	simatic_s7-300_cpu_315-2_dp	-	No
Hardware	siemens	simatic_s7-300_cpu_315-2_pn\/dp	-	No
Hardware	siemens	simatic_s7-300_cpu_317-_2_dp	-	No
Hardware	siemens	simatic_s7-300_cpu_317-2_pn\/dp	-	No
Hardware	siemens	simatic_s7-300_cpu_319-3_pn\/dp	-	No
Operating System	siemens	simatic_s7-400_cpu_firmware	-	Yes
Hardware	siemens	simatic_s7-400_cpu_412-1	-	No
Hardware	siemens	simatic_s7-400_cpu_412-2	-	No
Hardware	siemens	simatic_s7-400_cpu_412-2_pn	-	No
Hardware	siemens	simatic_s7-400_cpu_414-2	-	No
Hardware	siemens	simatic_s7-400_cpu_414-3	-	No
Hardware	siemens	simatic_s7-400_cpu_414-3_pn\/dp	-	No
Hardware	siemens	simatic_s7-400_cpu_416-2	-	No
Hardware	siemens	simatic_s7-400_cpu_416-3	-	No
Hardware	siemens	simatic_s7-400_cpu_416-3_pn\/dp	-	No
Hardware	siemens	simatic_s7-400_cpu_416f-2	-	No
Hardware	siemens	simatic_s7-400_cpu_416f-3_pn\/dp	-	No
Hardware	siemens	simatic_s7-400_cpu_417-4	-	No

References

http://www.securityfocus.com/bid/94820 ([email protected])
http://www.securitytracker.com/id/1037434 ([email protected])
https://cert-portal.siemens.com/productcert/pdf/ssa-731239.pdf ([email protected])
https://ics-cert.us-cert.gov/advisories/ICSA-16-348-05 ([email protected])
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-731239.pdf ([email protected])
http://www.securityfocus.com/bid/94820 (af854a3a-2127-422b-91ae-364da2661108)
http://www.securitytracker.com/id/1037434 (af854a3a-2127-422b-91ae-364da2661108)
https://cert-portal.siemens.com/productcert/pdf/ssa-731239.pdf (af854a3a-2127-422b-91ae-364da2661108)
https://ics-cert.us-cert.gov/advisories/ICSA-16-348-05 (af854a3a-2127-422b-91ae-364da2661108)
https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-731239.pdf (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For siemens's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.